Electropneumatic track-channeler.



N0. 860,208. PATENTED JULY 16, 1907. A. H. GIBSON. ELEGTROPNBUMATIC TRACK CHANNELER.

AYPLIOATION FILED AN. 11, 1007.

4 BHEETS-BHBBT 1.

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110.860,208.- PATBNTED JULY 16, 1907.

BLBGTROPNEUMATIC TRACK GHANNELBR.

l APPLIOATION ILBD 11111.11, 1901.

4 SHEETS-SHEET 3.

ne: NDR/Ns PEM-Rs co., wasmncwN, n. c.

iNO. 860,208. A PATENTBD JULY 16, 1907.

A. H. GIBSON. v BLEGTROPNUMATIG TRACK GHANNELBR.

APPLICATION FILED JAN. 11, 1907.

4 SHEETS-SHEET 4.

- UNITED sTATEs PATENT oEEieE.

ARTHUR Il. GIBSON, OF EASTON, PENNSYLVANIA, ASSIGNOR TO lNGEltSOLL-RAND COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

ELECTROPNEUMATIC TRACK-CHANNELER.

Specification of Letters Patent.

Patented July 16, 190'?.`

To all whom it may concern:

Be it known that I, ARTHUR H. GIBsoN, a subject of the King of Great Britain, and a resident of Easton, in the county of Northampton and State of Pennsylvania, have invented a new and useful Improvement in Electropneumatic Track-Channelers, of which the following is a specification.

This present invention relates to that class of machinery in which an air presser is utilized for reciprocating columns of air to operatea ypercussive tool and has for its object to provide meansindependent of the presser for raising the air pressure-in the system so that the effectiveness of the presser is'incr'eascd and thereby causes the percussive tool to strike a harder blow than where atmospheric pressure only is utilized in the system.

A yfurther object is to provide a device of the above character in which the pressor and an air pump independent of the presser, are driven by a common motor.

A still further object is to provide a device of the above character in which the truck which forms a support for the several parts, the air presser and the air pump are all three driven by a common motor.

A practical embodiment of my invention is represented in the accompanying drawings in which Figure l represents the channeler in front elevation, a portion of the swinging truck frame being breken away to more clearly show the parts back ofthe same, Fig. l is an' enlarged detail section showing one of the clutches and its adjacent parts, Fig. 2 is a top plan view of the channeler, certain of the parts being broken away to more clearly show the parts beneath the same, Figs. 2 and 2b are detail sections showing the manner of mounting the clutch operating levers, Fig. 2c is a detail view showing the geared connection between the motor gear and the truck gears, Fig. 3 is a vertical section through the channeler in the plane of the line A-A of Fig. 2, looking in the direction of the arrows, Fig. 4 is an enlarged detail view of the independent air pump and its operating means, Fig. 5 is a section taken through the housing for the inlet and discharge valves oi the pump, in the plane of the line B-B of Fig. 4, looking in the direction of the arrows, Fig. G is a section taken in the plane oi the line O O of Fig. 5, looking in the direction of the arrows, the discharge valve being removed, Fig. 7 is a section taken in the plane of the line D-D of Fig. 5, looking in the direction of the arrows, the inlet valve being removed, and Fig. 8 is a detail section of the check valve.

I have shown my invention in connection with an electro-pneumatic track ehanneler. The truck which carries the parts is denoted by l and it is provided with two axles 2 and 3, each axle being provided with a pair oi traction wheels 4. The truck is fitted to reciprocate on a track 5 laid in position to bring the channeler in proper relation to its work. The percussive tool cylinder, in the present instance the channeler cylinder, is denoted by G and it is mounted on a shell 7 which is adjustable on a swinging back frame S hinged to the truck I. rlhe air pressor is mounted on the truck and its cylinder is denoted by 9. The pressor is connected to the percussive tool cylinder G by two ilexiblc tubes l0, ll, whereby the pressor may be caused to operate the tool by reciprocating colunlnsof air. The crank shaft l2 of the pressor is driven from the shaft I3 of a motor such, for instance, as an electric motor I4, by means of gears l5, lr6. The niet or It is also used to reciprocate'the truck by the following means. The shaft I3 of the motor is provided with a pinion I7 which is arranged to drive two bevel gears I8, I9, in opposite directions, which bevel gears are loosely mounted on a horizontal drive shaft 20 having geared connections 2l, 22 with the truck axles 2, 3. The bevel gears IS, 19, i'orm part of two friction clutches the sliding members 23, 25 being keyed to rotate with the shaft 20 and arranged to be interlocked with the friction members 24, 2G of the said gears. Each of these friction members is arranged as shown in Fig. Ixl which illustrates the clutch 25, 2G in which the member 2li norm-.illy rotates with its gear 1S by being frictionally clamped between a flange IS* of the gear 1S and a spring pressed ring 2G* secured to the interior of a cylindrical casing 26H. r`hese two movable clutch members have operating levers 27, 27 connected by a rod 29 so that they are moved simultaneously. When the lever 27 is in its intermediate position, both of the clutches are disengaged and the truck will remain at rest even though the motor be running. When the lever 27 is moved into position to throw the clutch member 23 into engagement with its corresponding clutch member, the truck will be driven by the motor in one direction and when the lever 27'* is thrown into position to bring the clutch member 25 into engagement with its corresponding clutch member the clutch will be driven in the opposite direction.

Means independent of the pressor are provided for raising the pressure of air therein, which means in the present instance comprises an air pump 2S which is driven from the motor Ill as follows. This pump 28 is carried by the truck l, in the present instance by being mounted upon the motor I4. The pump piston is denoted by 29 and it is reciprocated by an eccentric 30 and pitman 3l from a shaft 32 mounted in suitable bearings in the supporting bracket 33. This shaft 32 is driven from the motor 14 in the present instance by providing the shaft with a pulley Si and the movable clutch member 24 with a pulley 35, around which pulleys a driving belt 36 passes. It Will thus be seen that the shaft 32 is rotated through the motor. pinion 17 and gear 19. This pump 28 is provided with a valve chest 37 having an inlet 33 from atmosphere which leads to a port 39 closed by an inlet valve 40. A port 4l leads from the top of the inlet valve into the pump cylinder.l A port 42 leads from the pump cylinder to the bottom of the discharge valve 43 and the discharge valve port 44 leads from the top of the valve 43-to a pipe 45 Which leads toa port 46 Which opens into the interior of the presser cylinder 9 at a point Where the said port 4G is alternately opened to the opposite sides of the presser piston 47 as the presser piston is reciprocated. A check valve 48 is 'located in the pipe 45 at a predetermined distance from the presser cylinder 9 to produce the desired results.

It has been found that the system Works to better effect Where the pressure of air in the system is kept above atmospheric pressure. This raising of the pressure is accomplished by the air pump herein described.

It will be seen that if there is too much pressure on the side of the presser piston Which produces the up stroke of the tool, the check valve may be moved close to the-presser cylinder and if the reverse be true, the check valve may be moved a greater distance from the presser cylinder. This may be accomplished by changing the lengths of the two sections of the pipe 45 which connect the check valve to the pump and presser cylinder, respectively. 1t is also evident that the port 46 in the presser Cylinder may be located at the desired position to insure the proper application of the additional air pressure to produce the best results for overcoming the loss of pressure in the system due to leakage. It is also obvious that the relative propertions o the belt pulleys which operate the air pump may be varied te obtain the feeding of the additional air pressure at the desired intervals.

It is evident that various changes might be resorted to in the construction, orm and arrangement of the several parts; hence I de not Wish to limit myself strictly to the construction herein set forth, but

What I claim is:

1. In combination, a percussive tool, an air presser for operating it by reciprocating columns vof air, an air pump independent of the presser for raising the pressure therein, and a commen motor for driving the presser and pump.

2. In combination, a truck, a percussive tool, an air pyesser for operating it by reciprocating columns of air, means independent of the presser for raising the pressure therein anda commen motor for driving the presser and truck.

3. In combination, a truck, a percussive tool, an air presser for operating it by reciprocating columns of air, an air pump independent of the presser for raising the Apressure therein, vand a common motor for driving the presser and pump.

4; In combination, a truck, a percussive tool, an air presser for operating it by reciprocating columns of air, an air pump independent of the presser for raising the pressure therein and a commen motor for driving the presser, the pump and the truck.

5. In combination, a truck, its drive shaft, a percussive tool, an air presser for operating it by reciprocating columns of air, means independent of the presser for raising the pressure therein, a common meter for driving the presser and truck, clutches on the truck drive shaft and means for causing one er the other of the clutches to connect the motor shaft to the drive shaft for driving the truck in either direction at pleasure.

6. In combination, a truck, its drive shaft, a percussive tool, an air presser for operating it by reciprocating columns of air, an air pump independent of the presser for raising the pressure therein, a common motor for driving the presser, the pump and the truck, clutches on the truck drive shaft and means for causing one or the other of the clutches to connect the motor shaft te the drive shaft for driving the truck in either direction at pleasure. d

7. In combination, a truck, its axles, a drive shaft having worm gear connections withthe axles, a percussive tool, an air presser for operating it by reciprocating columns of air, means independent of the presser for raising the 'pressure therein, a common motor for the presser and truck, clutches on the truck drive 'shaft and \means for causing one or the other of the clutches to connect the motor shaft to the drive shaft for driving the truck in either direction at pleasure.

8. In combination, a truck, its axles, a drive shaft havi'ng Worm gear connections with the axles, a percussive tool, an air presser for operating it by reciprocating columns of air, an air pump independent of the presser for raising the pressure therein, a commen meter for driving the presser', the pump and the truck, clutches en the drive shaft and means for causing one er the other of the clutches to connect the meter shaft te the drive shaft for driving the truck in either direction at pleasure.

9. In combination, a percussive tool, an air presser for operating it by reciprocating columns ef`air, an air pump independent of the presser for raising the pressure therein, said pump having a pipe leading te the presser, a check valve located in said pipe at the' desired distance from the presser and a commen motor for driving the presser and pump.

10. In combination, 'a truck, a percussive tol, 'an air presser for operating it by reciprocating columns of Aair, an air pump independent of the presser for raising the pressure therein, said pump having a pipe leading to the presser, a check valve located in said pipe at the desired distance from the presser and a common motor for driving the presser', the pump and the truck.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two Witnesses,

` this 0th day of January 1907.

ARTHUR H. GIBSON.

Witnesses I-IRNRY THIEME, F. GEORGE BARRY. 

